Fibre Channel portsSwitch mode (default): 48-, 72-, and 96-port configurations (24-port increments through Ports on Demand [PoD] licenses); (E, F, M, D, EX) portsScalabilityFull fabric architecture with a maximum of 239 switchesCertified maximum6000 active nodes; 56 switches, 19 hops in Brocade Fabric OS fabrics; larger fabrics certified as requiredPerformanceAuto-sensing of 2, 4, 8, and 16 Gbps port speeds; 10 Gbps and optionally programmable to fixed port speedISL trunkingFrame-based Trunking with up to eight 16 Gbps ports per ISL trunk; up to 128 Gbps per ISL trunk. Exchange-based load balancing across ISLs with DPS included in Brocade Fabric OS.Aggregate bandwidth1536 Gbps end-to-end full duplex